Amazon zooms, Alphabet drags, Apple outlook disappoints

Amazon (AMZN): Shares are jumping in early trading. The online behemoth posted a huge profit beat, with earnings topping estimates as well, powered by a strong holiday quarter.

Alphabet (GOOGL): Shares are dropping in midday trade, as the parent company of Google missed on earnings but beat on revenue. Investors appear to be concerned about tightening margins.

Apple (AAPL): Shares were volatile in early trading, now lower. Apple reported an earnings and revenue beat last quarter, but the concern here is iPhone shipments missed the estimates, and its guidance for the current quarter was weaker than expected.

For more on today’s big stock movers check out the Final Round, live at 3:55 p.m. Eastern, right here on Yahoo Finance.